246: Labyrinth Puzzle
explain xkcd: It's 'cause you're dumb.
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| date = April 9, 2007 | | date = April 9, 2007 | ||
| title = Labyrinth Puzzle | | title = Labyrinth Puzzle | ||
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| titletext = And the whole setup is just a trap to capture escaping logicians. None of the doors actually lead out | | titletext = And the whole setup is just a trap to capture escaping logicians. None of the doors actually lead out | ||
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{{comic discussion}} | {{comic discussion}} | ||
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[[Category:Comics featuring Cueball]] | [[Category:Comics featuring Cueball]] | ||
[[Category:Comics featuring Black Hat]] | [[Category:Comics featuring Black Hat]] | ||
[[Category:Logic]] | [[Category:Logic]] | ||
Revision as of 12:38, 4 January 2013
| Labyrinth Puzzle |
 Title text: And the whole setup is just a trap to capture escaping logicians. None of the doors actually lead out |
Explanation
This comic alludes to a famous Knights and Knaves-type logic puzzle, in which there are two doors and two guards. One guard always lies, and the other always tells the truth. One of the doors leads to freedom, and you can only ask one guard one question. The solution to this riddle involves a very tricky question indeed, and one would in the xkcd-version risk a stabbing from the third guard. If you want to give the original puzzle a try for yourself, don't read the spoiler in the next paragraph.
Solution: Ask one guard (it doesn't matter which one) which door the other guard would say leads out. The door indicated doesn't lead out.
Transcript
- Black Hat: And here we have the labyrinth guards. One always lies, one always tells the truth, and one stabs people who ask tricky questions.
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